Hi,
I do not understand why compiled version with ROOT lib does not show
any Canvas while Cint version shows Canvas???
The follwing was my trials:
1. "inside" of ROOT's cint interface:
================= my code "jayoung.C" is ============================
{
gROOT->Reset();
TCanvas c1 = new TCanvas("c1","Tracking of Incident Particle",
200,10,700,500);
c1->Modified();
c1->Update();
}
=======================================================================
root [0] .x jayoung.C shows a Canvas. But it gives the following error
^^^^^^^^^^^^^^^^^^^^^ message:
Warning in <TCanvas::Copy>: copy not implemented yet
*** Break *** segmentation violation
2. "inside" of ROOT's cint interface:
================= my code "jayoung.C" is ============================
{
gROOT->Reset();
TCanvas c1 = new TCanvas("c1","Tracking of Incident Particle",
200,10,700,500);
// c1->Modified();
// c1->Update();
}
=======================================================================
root [0] .x jayoung.C shows a Canvas. But it gives the following warning
^^^^^^^^^^^^^^^^^^^^^ message:
Warning in <TCanvas::Copy>: copy not implemented yet
3. "outside" of ROOT's cint interface: execute compiled program with ROOT
lib. My version is "root_v0.9.OSF1.v3.2".
================= my code "jayoung.C" is ============================
#include <stdio.h>
#include <math.h>
#include "TROOT.h"
#include "TFile.h"
#include "TTree.h"
#include "TBranch.h"
#include "TObject.h"
#include "TH1.h"
#include "TCanvas.h"
void main()
{
TROOT ytrack("plot2","plot test");
TCanvas *c1 = new TCanvas("c1","Tracking of Incident Particle",
200,10,700,500);
// c1->Modified();
// c1->Update();
}
====================================================================
It is successfully comlied with ROOT lib (root_v0.9.OSF1.v3.2).
But it does not show any canvas when it is executed.
Also it does not complain anything at all.
---
Thanks a lot!
Jayoung
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